Equisetum cf. pratense Ehrhart, 1784
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publication ID |
https://dx.doi.org/10.3897/phytokeys.138.38674 |
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persistent identifier |
https://treatment.plazi.org/id/9F5E1938-99AA-5420-A83C-8736C142C4DD |
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treatment provided by |
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scientific name |
Equisetum cf. pratense Ehrhart |
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Equisetum cf. pratense Ehrhart
Specimens checked.
XTBGSZTF0001 (Fig. 2A-B View Figure 2 )
Locality.
Dajie Formation, Sanzhangtian Village, Zhenyuan County, central Yunnan Province, South-western China (24.100N, 101.216E).
Age.
The middle Miocene.
Repository.
Paleoecology Collections, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences.
Description.
Only one bunch of tubers are preserved on the specimen, tubers are ovate in shape, three tubers of equal size are arranged in one row (Fig. 2A-B View Figure 2 ). The length and width of the tubers are ~ 0.9 to 1.2 cm and 0.6 to 0.8 cm, respectively. Two to three longitudinal ridges are present on the surface of each tuber (Fig. 2A-B View Figure 2 ). The tip of the tuber is mucronate (Fig. 2A-B View Figure 2 ). These characters fit well within the morphology of E. cf. pratense , a fossil species reported from the early Oligocene in the Lühe coal-mine, south-central Yunnan ( Zhang et al. 2007; Linnemann et al. 2018).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.